5 * Copyright (c) 2013 Connor Abbott (connor@abbott.cx)
6 * Copyright (c) 2018 Alyssa Rosenzweig (alyssa@rosenzweig.io)
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
33 #define MIDGARD_DBG_MSGS 0x0001
34 #define MIDGARD_DBG_SHADERS 0x0002
36 extern int midgard_debug
;
39 midgard_word_type_alu
,
40 midgard_word_type_load_store
,
41 midgard_word_type_texture
,
42 midgard_word_type_unknown
58 midgard_alu_op_fadd
= 0x10,
59 midgard_alu_op_fmul
= 0x14,
60 midgard_alu_op_fmin
= 0x28,
61 midgard_alu_op_fmax
= 0x2C,
62 midgard_alu_op_fmov
= 0x30,
63 midgard_alu_op_froundeven
= 0x34,
64 midgard_alu_op_ftrunc
= 0x35,
65 midgard_alu_op_ffloor
= 0x36,
66 midgard_alu_op_fceil
= 0x37,
67 midgard_alu_op_ffma
= 0x38,
68 midgard_alu_op_fdot3
= 0x3C,
69 midgard_alu_op_fdot3r
= 0x3D,
70 midgard_alu_op_fdot4
= 0x3E,
71 midgard_alu_op_freduce
= 0x3F,
72 midgard_alu_op_iadd
= 0x40,
73 midgard_alu_op_ishladd
= 0x41,
74 midgard_alu_op_isub
= 0x46,
75 midgard_alu_op_imul
= 0x58,
76 midgard_alu_op_imin
= 0x60,
77 midgard_alu_op_imax
= 0x62,
78 midgard_alu_op_iasr
= 0x68,
79 midgard_alu_op_ilsr
= 0x69,
80 midgard_alu_op_ishl
= 0x6E,
81 midgard_alu_op_iand
= 0x70,
82 midgard_alu_op_ior
= 0x71,
83 midgard_alu_op_inot
= 0x72,
84 midgard_alu_op_iandnot
= 0x74, /* (a, b) -> a & ~b, used for not/b2f */
85 midgard_alu_op_ixor
= 0x76,
86 midgard_alu_op_imov
= 0x7B,
87 midgard_alu_op_feq
= 0x80,
88 midgard_alu_op_fne
= 0x81,
89 midgard_alu_op_flt
= 0x82,
90 midgard_alu_op_fle
= 0x83,
91 midgard_alu_op_fball_eq
= 0x88,
92 midgard_alu_op_bball_eq
= 0x89,
93 midgard_alu_op_bbany_neq
= 0x90, /* used for bvec4(1) */
94 midgard_alu_op_fbany_neq
= 0x91, /* bvec4(0) also */
95 midgard_alu_op_f2i
= 0x99,
96 midgard_alu_op_f2u8
= 0x9C,
97 midgard_alu_op_f2u
= 0x9D,
98 midgard_alu_op_ieq
= 0xA0,
99 midgard_alu_op_ine
= 0xA1,
100 midgard_alu_op_ilt
= 0xA4,
101 midgard_alu_op_ile
= 0xA5,
102 midgard_alu_op_iball_eq
= 0xA8,
103 midgard_alu_op_ball
= 0xA9,
104 midgard_alu_op_ibany_neq
= 0xB1,
105 midgard_alu_op_i2f
= 0xB8,
106 midgard_alu_op_u2f
= 0xBC,
107 midgard_alu_op_icsel
= 0xC1,
108 midgard_alu_op_fcsel
= 0xC5,
109 midgard_alu_op_fround
= 0xC6,
110 midgard_alu_op_fatan_pt2
= 0xE8,
111 midgard_alu_op_frcp
= 0xF0,
112 midgard_alu_op_frsqrt
= 0xF2,
113 midgard_alu_op_fsqrt
= 0xF3,
114 midgard_alu_op_fexp2
= 0xF4,
115 midgard_alu_op_flog2
= 0xF5,
116 midgard_alu_op_fsin
= 0xF6,
117 midgard_alu_op_fcos
= 0xF7,
118 midgard_alu_op_fatan2_pt1
= 0xF9,
122 midgard_outmod_none
= 0,
123 midgard_outmod_pos
= 1,
124 midgard_outmod_int
= 2,
125 midgard_outmod_sat
= 3
129 midgard_reg_mode_quarter
= 0,
130 midgard_reg_mode_half
= 1,
131 midgard_reg_mode_full
= 2,
132 midgard_reg_mode_double
= 3 /* TODO: verify */
136 midgard_dest_override_lower
= 0,
137 midgard_dest_override_upper
= 1,
138 midgard_dest_override_none
= 2
139 } midgard_dest_override
;
142 __attribute__((__packed__
))
147 /* replicate lower half if dest = half, or low/high half selection if
151 bool rep_high
: 1; /* unused if dest = full */
152 bool half
: 1; /* only matters if dest = full */
153 unsigned swizzle
: 8;
155 midgard_vector_alu_src
;
158 __attribute__((__packed__
))
160 midgard_alu_op op
: 8;
161 midgard_reg_mode reg_mode
: 2;
164 midgard_dest_override dest_override
: 2;
165 midgard_outmod outmod
: 2;
171 __attribute__((__packed__
))
175 bool full
: 1; /* 0 = half, 1 = full */
176 unsigned component
: 3;
178 midgard_scalar_alu_src
;
181 __attribute__((__packed__
))
183 midgard_alu_op op
: 8;
186 unsigned unknown
: 1;
187 midgard_outmod outmod
: 2;
188 bool output_full
: 1;
189 unsigned output_component
: 3;
194 __attribute__((__packed__
))
196 unsigned src1_reg
: 5;
197 unsigned src2_reg
: 5;
198 unsigned out_reg
: 5;
204 midgard_jmp_writeout_op_branch_uncond
= 1,
205 midgard_jmp_writeout_op_branch_cond
= 2,
206 midgard_jmp_writeout_op_discard
= 4,
207 midgard_jmp_writeout_op_writeout
= 7,
208 } midgard_jmp_writeout_op
;
211 midgard_condition_write0
= 0,
212 midgard_condition_false
= 1,
213 midgard_condition_true
= 2,
214 midgard_condition_always
= 3, /* Special for writeout/uncond discard */
218 __attribute__((__packed__
))
220 midgard_jmp_writeout_op op
: 3; /* == branch_uncond */
221 unsigned dest_tag
: 4; /* tag of branch destination */
222 unsigned unknown
: 2;
225 midgard_branch_uncond
;
228 __attribute__((__packed__
))
230 midgard_jmp_writeout_op op
: 3; /* == branch_cond */
231 unsigned dest_tag
: 4; /* tag of branch destination */
233 midgard_condition cond
: 2;
238 __attribute__((__packed__
))
240 midgard_jmp_writeout_op op
: 3; /* == branch_cond */
241 unsigned dest_tag
: 4; /* tag of branch destination */
242 unsigned unknown
: 2;
246 midgard_branch_extended
;
249 __attribute__((__packed__
))
251 midgard_jmp_writeout_op op
: 3; /* == writeout */
252 unsigned unknown
: 13;
261 midgard_op_ld_st_noop
= 0x03,
262 midgard_op_load_attr_16
= 0x95,
263 midgard_op_load_attr_32
= 0x94,
264 midgard_op_load_vary_16
= 0x99,
265 midgard_op_load_vary_32
= 0x98,
266 midgard_op_load_color_buffer_16
= 0x9D,
267 midgard_op_load_color_buffer_8
= 0xBA,
268 midgard_op_load_uniform_16
= 0xAC,
269 midgard_op_load_uniform_32
= 0xB0,
270 midgard_op_store_vary_16
= 0xD5,
271 midgard_op_store_vary_32
= 0xD4
272 } midgard_load_store_op
;
275 midgard_interp_centroid
= 1,
276 midgard_interp_default
= 2
277 } midgard_interpolation
;
280 __attribute__((__packed__
))
282 unsigned zero1
: 4; /* Always zero */
284 /* Varying qualifiers, zero if not a varying */
286 unsigned is_varying
: 1; /* Always one for varying, but maybe something else? */
287 midgard_interpolation interpolation
: 2;
289 unsigned zero2
: 2; /* Always zero */
291 midgard_varying_parameter
;
294 __attribute__((__packed__
))
296 midgard_load_store_op op
: 8;
299 unsigned swizzle
: 8;
300 unsigned unknown
: 16;
302 unsigned varying_parameters
: 10;
304 unsigned address
: 9;
306 midgard_load_store_word
;
309 __attribute__((__packed__
))
312 unsigned next_type
: 4;
318 /* Texture pipeline results are in r28-r29 */
319 #define REG_TEX_BASE 28
321 /* Texture opcodes... maybe? */
322 #define TEXTURE_OP_NORMAL 0x11
323 #define TEXTURE_OP_TEXEL_FETCH 0x14
325 /* Texture format types, found in format */
326 #define TEXTURE_CUBE 0x00
327 #define TEXTURE_2D 0x02
328 #define TEXTURE_3D 0x03
331 __attribute__((__packed__
))
334 unsigned next_type
: 4;
338 unsigned unknown3
: 1;
340 /* A little obscure, but last is set for the last texture operation in
341 * a shader. cont appears to just be last's opposite (?). Yeah, I know,
342 * kind of funky.. BiOpen thinks it could do with memory hinting, or
349 unsigned has_offset
: 1;
351 /* Like in Bifrost */
354 unsigned in_reg_select
: 1;
355 unsigned in_reg_upper
: 1;
357 unsigned in_reg_swizzle_left
: 2;
358 unsigned in_reg_swizzle_right
: 2;
360 unsigned unknown1
: 2;
362 unsigned unknown8
: 4;
364 unsigned out_full
: 1;
366 /* Always 1 afaict... */
367 unsigned unknown7
: 2;
369 unsigned out_reg_select
: 1;
370 unsigned out_upper
: 1;
374 unsigned unknown2
: 2;
376 unsigned swizzle
: 8;
377 unsigned unknown4
: 8;
379 unsigned unknownA
: 4;
381 unsigned offset_unknown1
: 1;
382 unsigned offset_reg_select
: 1;
383 unsigned offset_reg_upper
: 1;
384 unsigned offset_unknown4
: 1;
385 unsigned offset_unknown5
: 1;
386 unsigned offset_unknown6
: 1;
387 unsigned offset_unknown7
: 1;
388 unsigned offset_unknown8
: 1;
389 unsigned offset_unknown9
: 1;
391 unsigned unknownB
: 3;
393 /* Texture bias or LOD, depending on whether it is executed in a
394 * fragment/vertex shader respectively. Compute as int(2^8 * biasf).
396 * For texel fetch, this is the LOD as is. */
399 unsigned unknown9
: 8;
401 unsigned texture_handle
: 16;
402 unsigned sampler_handle
: 16;
404 midgard_texture_word
;
406 /* Opcode name table */
408 static char *alu_opcode_names
[256] = {
409 [midgard_alu_op_fadd
] = "fadd",
410 [midgard_alu_op_fmul
] = "fmul",
411 [midgard_alu_op_fmin
] = "fmin",
412 [midgard_alu_op_fmax
] = "fmax",
413 [midgard_alu_op_fmov
] = "fmov",
414 [midgard_alu_op_froundeven
] = "froundeven",
415 [midgard_alu_op_ftrunc
] = "ftrunc",
416 [midgard_alu_op_ffloor
] = "ffloor",
417 [midgard_alu_op_fceil
] = "fceil",
418 [midgard_alu_op_ffma
] = "ffma",
419 [midgard_alu_op_fdot3
] = "fdot3",
420 [midgard_alu_op_fdot3r
] = "fdot3r",
421 [midgard_alu_op_fdot4
] = "fdot4",
422 [midgard_alu_op_freduce
] = "freduce",
423 [midgard_alu_op_imin
] = "imin",
424 [midgard_alu_op_imax
] = "imax",
425 [midgard_alu_op_ishl
] = "ishl",
426 [midgard_alu_op_iasr
] = "iasr",
427 [midgard_alu_op_ilsr
] = "ilsr",
428 [midgard_alu_op_iadd
] = "iadd",
429 [midgard_alu_op_ishladd
] = "ishladd",
430 [midgard_alu_op_isub
] = "isub",
431 [midgard_alu_op_imul
] = "imul",
432 [midgard_alu_op_imov
] = "imov",
433 [midgard_alu_op_iand
] = "iand",
434 [midgard_alu_op_ior
] = "ior",
435 [midgard_alu_op_inot
] = "inot",
436 [midgard_alu_op_iandnot
] = "iandnot",
437 [midgard_alu_op_ixor
] = "ixor",
438 [midgard_alu_op_feq
] = "feq",
439 [midgard_alu_op_fne
] = "fne",
440 [midgard_alu_op_flt
] = "flt",
441 [midgard_alu_op_fle
] = "fle",
442 [midgard_alu_op_fball_eq
] = "fball_eq",
443 [midgard_alu_op_fbany_neq
] = "fbany_neq",
444 [midgard_alu_op_bball_eq
] = "bball_eq",
445 [midgard_alu_op_bbany_neq
] = "bbany_neq",
446 [midgard_alu_op_f2i
] = "f2i",
447 [midgard_alu_op_f2u
] = "f2u",
448 [midgard_alu_op_f2u8
] = "f2u8",
449 [midgard_alu_op_ieq
] = "ieq",
450 [midgard_alu_op_ine
] = "ine",
451 [midgard_alu_op_ilt
] = "ilt",
452 [midgard_alu_op_ile
] = "ile",
453 [midgard_alu_op_iball_eq
] = "iball_eq",
454 [midgard_alu_op_ball
] = "ball",
455 [midgard_alu_op_ibany_neq
] = "ibany_neq",
456 [midgard_alu_op_i2f
] = "i2f",
457 [midgard_alu_op_u2f
] = "u2f",
458 [midgard_alu_op_icsel
] = "icsel",
459 [midgard_alu_op_fcsel
] = "fcsel",
460 [midgard_alu_op_fround
] = "fround",
461 [midgard_alu_op_fatan_pt2
] = "fatan_pt2",
462 [midgard_alu_op_frcp
] = "frcp",
463 [midgard_alu_op_frsqrt
] = "frsqrt",
464 [midgard_alu_op_fsqrt
] = "fsqrt",
465 [midgard_alu_op_fexp2
] = "fexp2",
466 [midgard_alu_op_flog2
] = "flog2",
467 [midgard_alu_op_fsin
] = "fsin",
468 [midgard_alu_op_fcos
] = "fcos",
469 [midgard_alu_op_fatan2_pt1
] = "fatan2_pt1"
472 static char *load_store_opcode_names
[256] = {
473 [midgard_op_load_attr_16
] = "ld_attr_16",
474 [midgard_op_load_attr_32
] = "ld_attr_32",
475 [midgard_op_load_vary_16
] = "ld_vary_16",
476 [midgard_op_load_vary_32
] = "ld_vary_32",
477 [midgard_op_load_uniform_16
] = "ld_uniform_16",
478 [midgard_op_load_uniform_32
] = "ld_uniform_32",
479 [midgard_op_load_color_buffer_8
] = "ld_color_buffer_8",
480 [midgard_op_load_color_buffer_16
] = "ld_color_buffer_16",
481 [midgard_op_store_vary_16
] = "st_vary_16",
482 [midgard_op_store_vary_32
] = "st_vary_32"